<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    <a name="line.1"></a>
<FONT color="green">002</FONT>    /*<a name="line.2"></a>
<FONT color="green">003</FONT>     * Copyright (C) 2011 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<FONT color="green">004</FONT>     *<a name="line.4"></a>
<FONT color="green">005</FONT>     * $Id: SimpleObjectParser.html 101 2011-05-10 16:43:38Z archie.cobbs $<a name="line.5"></a>
<FONT color="green">006</FONT>     */<a name="line.6"></a>
<FONT color="green">007</FONT>    <a name="line.7"></a>
<FONT color="green">008</FONT>    package org.dellroad.stuff.string;<a name="line.8"></a>
<FONT color="green">009</FONT>    <a name="line.9"></a>
<FONT color="green">010</FONT>    import java.beans.BeanInfo;<a name="line.10"></a>
<FONT color="green">011</FONT>    import java.beans.IndexedPropertyDescriptor;<a name="line.11"></a>
<FONT color="green">012</FONT>    import java.beans.IntrospectionException;<a name="line.12"></a>
<FONT color="green">013</FONT>    import java.beans.Introspector;<a name="line.13"></a>
<FONT color="green">014</FONT>    import java.beans.PropertyDescriptor;<a name="line.14"></a>
<FONT color="green">015</FONT>    import java.lang.reflect.Method;<a name="line.15"></a>
<FONT color="green">016</FONT>    import java.util.Collections;<a name="line.16"></a>
<FONT color="green">017</FONT>    import java.util.HashMap;<a name="line.17"></a>
<FONT color="green">018</FONT>    import java.util.Map;<a name="line.18"></a>
<FONT color="green">019</FONT>    import java.util.regex.Matcher;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.util.regex.Pattern;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.regex.PatternSyntaxException;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import org.dellroad.stuff.java.Primitive;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    /**<a name="line.25"></a>
<FONT color="green">026</FONT>     * Parses strings using regular expressions into new instances of some class by parsing substrings.<a name="line.26"></a>
<FONT color="green">027</FONT>     * Primitive and String values are handled automatically. Other property types can be handled by<a name="line.27"></a>
<FONT color="green">028</FONT>     * overriding {@link #setProperty}.<a name="line.28"></a>
<FONT color="green">029</FONT>     *<a name="line.29"></a>
<FONT color="green">030</FONT>     * &lt;a name="namedgroup"/&gt;<a name="line.30"></a>
<FONT color="green">031</FONT>     * &lt;p&gt;<a name="line.31"></a>
<FONT color="green">032</FONT>     * This class supports parsing using a &lt;i&gt;named group regular expression&lt;/i&gt;, which is pattern string<a name="line.32"></a>
<FONT color="green">033</FONT>     * using normal {@link Pattern} regular expression syntax with one additional grouping construct of the<a name="line.33"></a>
<FONT color="green">034</FONT>     * form &lt;code&gt;({property}...)&lt;/code&gt;, allowing the Java bean property name to be specified inside the<a name="line.34"></a>
<FONT color="green">035</FONT>     * curly braces at the start of a grouped subexpression.<a name="line.35"></a>
<FONT color="green">036</FONT>     *<a name="line.36"></a>
<FONT color="green">037</FONT>     * &lt;p&gt;<a name="line.37"></a>
<FONT color="green">038</FONT>     * Instances of this class are immutable and thread-safe.<a name="line.38"></a>
<FONT color="green">039</FONT>     */<a name="line.39"></a>
<FONT color="green">040</FONT>    public class SimpleObjectParser&lt;T&gt; {<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>        private final Class&lt;T&gt; targetClass;<a name="line.42"></a>
<FONT color="green">043</FONT>        private final HashMap&lt;String, PropertyDescriptor&gt; propertyMap = new HashMap&lt;String, PropertyDescriptor&gt;();<a name="line.43"></a>
<FONT color="green">044</FONT>    <a name="line.44"></a>
<FONT color="green">045</FONT>        /**<a name="line.45"></a>
<FONT color="green">046</FONT>         * Constructor.<a name="line.46"></a>
<FONT color="green">047</FONT>         *<a name="line.47"></a>
<FONT color="green">048</FONT>         * @param targetClass type of target object we will be parsing<a name="line.48"></a>
<FONT color="green">049</FONT>         */<a name="line.49"></a>
<FONT color="green">050</FONT>        public SimpleObjectParser(Class&lt;T&gt; targetClass) {<a name="line.50"></a>
<FONT color="green">051</FONT>            this.targetClass = targetClass;<a name="line.51"></a>
<FONT color="green">052</FONT>            this.buildPropertyMap();<a name="line.52"></a>
<FONT color="green">053</FONT>        }<a name="line.53"></a>
<FONT color="green">054</FONT>    <a name="line.54"></a>
<FONT color="green">055</FONT>        /**<a name="line.55"></a>
<FONT color="green">056</FONT>         * Get the target class.<a name="line.56"></a>
<FONT color="green">057</FONT>         */<a name="line.57"></a>
<FONT color="green">058</FONT>        public Class&lt;T&gt; getTargetClass() {<a name="line.58"></a>
<FONT color="green">059</FONT>            return this.targetClass;<a name="line.59"></a>
<FONT color="green">060</FONT>        }<a name="line.60"></a>
<FONT color="green">061</FONT>    <a name="line.61"></a>
<FONT color="green">062</FONT>        /**<a name="line.62"></a>
<FONT color="green">063</FONT>         * Same as {@link #parse(Object, String, String, boolean)} but this method creates the target instance using<a name="line.63"></a>
<FONT color="green">064</FONT>         * the target type's default constructor.<a name="line.64"></a>
<FONT color="green">065</FONT>         *<a name="line.65"></a>
<FONT color="green">066</FONT>         * @throws RuntimeException if a new target instance cannot be created using the default constructor<a name="line.66"></a>
<FONT color="green">067</FONT>         * @since 1.0.85<a name="line.67"></a>
<FONT color="green">068</FONT>         */<a name="line.68"></a>
<FONT color="green">069</FONT>        public T parse(String text, String regex, boolean allowSubstringMatch) {<a name="line.69"></a>
<FONT color="green">070</FONT>            T target;<a name="line.70"></a>
<FONT color="green">071</FONT>            try {<a name="line.71"></a>
<FONT color="green">072</FONT>                target = this.targetClass.newInstance();<a name="line.72"></a>
<FONT color="green">073</FONT>            } catch (Exception e) {<a name="line.73"></a>
<FONT color="green">074</FONT>                throw new RuntimeException("can't create instance of " + this.targetClass + " using default constructor", e);<a name="line.74"></a>
<FONT color="green">075</FONT>            }<a name="line.75"></a>
<FONT color="green">076</FONT>            return this.parse(target, text, regex, allowSubstringMatch);<a name="line.76"></a>
<FONT color="green">077</FONT>        }<a name="line.77"></a>
<FONT color="green">078</FONT>    <a name="line.78"></a>
<FONT color="green">079</FONT>        /**<a name="line.79"></a>
<FONT color="green">080</FONT>         * Parse the given text using the provided &lt;i&gt;named group regular expression&lt;/i&gt;.<a name="line.80"></a>
<FONT color="green">081</FONT>         *<a name="line.81"></a>
<FONT color="green">082</FONT>         * &lt;p&gt;<a name="line.82"></a>
<FONT color="green">083</FONT>         * This method assumes the following about {@code regex}:<a name="line.83"></a>
<FONT color="green">084</FONT>         * &lt;ul&gt;<a name="line.84"></a>
<FONT color="green">085</FONT>         * &lt;li&gt;All instances of an opening parenthesis not preceded by a backslash are actual grouped sub-expressions&lt;/li&gt;<a name="line.85"></a>
<FONT color="green">086</FONT>         * &lt;li&gt;In particular, all instances of substrings like &lt;code&gt;({foo}&lt;/code&gt; are actual named group sub-expressions&lt;/li&gt;<a name="line.86"></a>
<FONT color="green">087</FONT>         * &lt;/ul&gt;<a name="line.87"></a>
<FONT color="green">088</FONT>         *<a name="line.88"></a>
<FONT color="green">089</FONT>         * @param target              target instance<a name="line.89"></a>
<FONT color="green">090</FONT>         * @param text                string to parse<a name="line.90"></a>
<FONT color="green">091</FONT>         * @param regex               named group regular expression containing object property names<a name="line.91"></a>
<FONT color="green">092</FONT>         * @param allowSubstringMatch if false, entire text must match, otherwise only a (the first) substring need match<a name="line.92"></a>
<FONT color="green">093</FONT>         * @return parsed object or null if parse fails<a name="line.93"></a>
<FONT color="green">094</FONT>         * @throws PatternSyntaxException if the regular expression with the named group property names removed is invalid<a name="line.94"></a>
<FONT color="green">095</FONT>         * @throws PatternSyntaxException if this method cannot successfully parse the regular expression<a name="line.95"></a>
<FONT color="green">096</FONT>         * @throws IllegalArgumentException if a named group specfies a property that is not a parseable<a name="line.96"></a>
<FONT color="green">097</FONT>         *                                  property of this instance's target class<a name="line.97"></a>
<FONT color="green">098</FONT>         * @since 1.0.95<a name="line.98"></a>
<FONT color="green">099</FONT>         */<a name="line.99"></a>
<FONT color="green">100</FONT>        public T parse(T target, String text, String regex, boolean allowSubstringMatch) {<a name="line.100"></a>
<FONT color="green">101</FONT>    <a name="line.101"></a>
<FONT color="green">102</FONT>            // Scan regular expression for named sub-groups and parse them out<a name="line.102"></a>
<FONT color="green">103</FONT>            HashMap&lt;Integer, String&gt; patternMap = new HashMap&lt;Integer, String&gt;();<a name="line.103"></a>
<FONT color="green">104</FONT>            StringBuilder buf = new StringBuilder(regex.length());<a name="line.104"></a>
<FONT color="green">105</FONT>            Pattern namedGroup = Pattern.compile("\\(\\{(\\p{javaJavaIdentifierStart}\\p{javaJavaIdentifierPart}*)\\}");<a name="line.105"></a>
<FONT color="green">106</FONT>            Matcher matcher = namedGroup.matcher(regex);<a name="line.106"></a>
<FONT color="green">107</FONT>            int pos = 0;<a name="line.107"></a>
<FONT color="green">108</FONT>            int groupCount = 0;<a name="line.108"></a>
<FONT color="green">109</FONT>            while (true) {<a name="line.109"></a>
<FONT color="green">110</FONT>                int match = matcher.find(pos) ? matcher.start() : regex.length();<a name="line.110"></a>
<FONT color="green">111</FONT>                String chunk = regex.substring(pos, match);<a name="line.111"></a>
<FONT color="green">112</FONT>                for (int i = 0; i &lt; chunk.length(); i++) {<a name="line.112"></a>
<FONT color="green">113</FONT>                    if (chunk.charAt(i) == '('<a name="line.113"></a>
<FONT color="green">114</FONT>                      &amp;&amp; (i == 0 || chunk.charAt(i - 1) != '\\')<a name="line.114"></a>
<FONT color="green">115</FONT>                      &amp;&amp; (i == chunk.length() - 1 || chunk.charAt(i + 1) != '?'))<a name="line.115"></a>
<FONT color="green">116</FONT>                        groupCount++;<a name="line.116"></a>
<FONT color="green">117</FONT>                }<a name="line.117"></a>
<FONT color="green">118</FONT>                buf.append(chunk);<a name="line.118"></a>
<FONT color="green">119</FONT>                if (match == regex.length())<a name="line.119"></a>
<FONT color="green">120</FONT>                    break;<a name="line.120"></a>
<FONT color="green">121</FONT>                buf.append('(');<a name="line.121"></a>
<FONT color="green">122</FONT>                patternMap.put(++groupCount, matcher.group(1));<a name="line.122"></a>
<FONT color="green">123</FONT>                pos = matcher.end();<a name="line.123"></a>
<FONT color="green">124</FONT>            }<a name="line.124"></a>
<FONT color="green">125</FONT>    <a name="line.125"></a>
<FONT color="green">126</FONT>            // Sanity check our parse attempt<a name="line.126"></a>
<FONT color="green">127</FONT>            Pattern pattern = Pattern.compile(buf.toString());<a name="line.127"></a>
<FONT color="green">128</FONT>            int numGroups = pattern.matcher("").groupCount();<a name="line.128"></a>
<FONT color="green">129</FONT>            if (numGroups != groupCount) {<a name="line.129"></a>
<FONT color="green">130</FONT>                throw new PatternSyntaxException("the given regular expression is not supported (counted "<a name="line.130"></a>
<FONT color="green">131</FONT>                  + groupCount + " != " + numGroups + " groups)", regex, 0);<a name="line.131"></a>
<FONT color="green">132</FONT>            }<a name="line.132"></a>
<FONT color="green">133</FONT>    <a name="line.133"></a>
<FONT color="green">134</FONT>            // Proceed<a name="line.134"></a>
<FONT color="green">135</FONT>            return this.parse(target, text, pattern, patternMap, allowSubstringMatch);<a name="line.135"></a>
<FONT color="green">136</FONT>        }<a name="line.136"></a>
<FONT color="green">137</FONT>    <a name="line.137"></a>
<FONT color="green">138</FONT>        /**<a name="line.138"></a>
<FONT color="green">139</FONT>         * Same as {@link #parse(Object, String, Pattern, Map, boolean)} but this method creates the target instance using<a name="line.139"></a>
<FONT color="green">140</FONT>         * the target type's default constructor.<a name="line.140"></a>
<FONT color="green">141</FONT>         *<a name="line.141"></a>
<FONT color="green">142</FONT>         * @throws RuntimeException if a new target instance cannot be created using the default constructor<a name="line.142"></a>
<FONT color="green">143</FONT>         * @since 1.0.85<a name="line.143"></a>
<FONT color="green">144</FONT>         */<a name="line.144"></a>
<FONT color="green">145</FONT>        public T parse(String text, Pattern pattern, Map&lt;Integer, String&gt; patternMap, boolean allowSubstringMatch) {<a name="line.145"></a>
<FONT color="green">146</FONT>            T target;<a name="line.146"></a>
<FONT color="green">147</FONT>            try {<a name="line.147"></a>
<FONT color="green">148</FONT>                target = this.targetClass.newInstance();<a name="line.148"></a>
<FONT color="green">149</FONT>            } catch (Exception e) {<a name="line.149"></a>
<FONT color="green">150</FONT>                throw new RuntimeException("can't create instance of " + this.targetClass + " using default constructor", e);<a name="line.150"></a>
<FONT color="green">151</FONT>            }<a name="line.151"></a>
<FONT color="green">152</FONT>            return this.parse(target, text, pattern, patternMap, allowSubstringMatch);<a name="line.152"></a>
<FONT color="green">153</FONT>        }<a name="line.153"></a>
<FONT color="green">154</FONT>    <a name="line.154"></a>
<FONT color="green">155</FONT>        /**<a name="line.155"></a>
<FONT color="green">156</FONT>         * Parse the given text using the provided pattern and mapping from pattern sub-group to Java bean property name.<a name="line.156"></a>
<FONT color="green">157</FONT>         *<a name="line.157"></a>
<FONT color="green">158</FONT>         * @param target              target instance<a name="line.158"></a>
<FONT color="green">159</FONT>         * @param text                string to parse<a name="line.159"></a>
<FONT color="green">160</FONT>         * @param pattern             pattern with substring matching groups that match object properties<a name="line.160"></a>
<FONT color="green">161</FONT>         * @param patternMap          mapping from pattern substring group index to object property name<a name="line.161"></a>
<FONT color="green">162</FONT>         * @param allowSubstringMatch if false, entire text must match, otherwise only a (the first) substring need match<a name="line.162"></a>
<FONT color="green">163</FONT>         * @return parsed object or null if parse fails<a name="line.163"></a>
<FONT color="green">164</FONT>         * @throws IllegalArgumentException if the map contains a property that is not a parseable<a name="line.164"></a>
<FONT color="green">165</FONT>         *                                  property of this instance's target class<a name="line.165"></a>
<FONT color="green">166</FONT>         * @throws IllegalArgumentException if a subgroup index key in patternMap is out of bounds<a name="line.166"></a>
<FONT color="green">167</FONT>         * @since 1.0.95<a name="line.167"></a>
<FONT color="green">168</FONT>         */<a name="line.168"></a>
<FONT color="green">169</FONT>        public T parse(T target, String text, Pattern pattern, Map&lt;Integer, String&gt; patternMap, boolean allowSubstringMatch) {<a name="line.169"></a>
<FONT color="green">170</FONT>    <a name="line.170"></a>
<FONT color="green">171</FONT>            // Compose given map with target class' property map<a name="line.171"></a>
<FONT color="green">172</FONT>            HashMap&lt;Integer, PropertyDescriptor&gt; subgroupMap = new HashMap&lt;Integer, PropertyDescriptor&gt;();<a name="line.172"></a>
<FONT color="green">173</FONT>            for (Map.Entry&lt;Integer, String&gt; entry : patternMap.entrySet()) {<a name="line.173"></a>
<FONT color="green">174</FONT>                String propName = entry.getValue();<a name="line.174"></a>
<FONT color="green">175</FONT>                PropertyDescriptor property = this.propertyMap.get(propName);<a name="line.175"></a>
<FONT color="green">176</FONT>                if (property == null)<a name="line.176"></a>
<FONT color="green">177</FONT>                    throw new IllegalArgumentException("parseable property \"" + propName + "\" not found in " + this.targetClass);<a name="line.177"></a>
<FONT color="green">178</FONT>                subgroupMap.put(entry.getKey(), property);<a name="line.178"></a>
<FONT color="green">179</FONT>            }<a name="line.179"></a>
<FONT color="green">180</FONT>    <a name="line.180"></a>
<FONT color="green">181</FONT>            // Attempt to match the string<a name="line.181"></a>
<FONT color="green">182</FONT>            Matcher matcher = pattern.matcher(text);<a name="line.182"></a>
<FONT color="green">183</FONT>            boolean matches = allowSubstringMatch ? matcher.find() : matcher.matches();<a name="line.183"></a>
<FONT color="green">184</FONT>            if (!matches)<a name="line.184"></a>
<FONT color="green">185</FONT>                return null;<a name="line.185"></a>
<FONT color="green">186</FONT>    <a name="line.186"></a>
<FONT color="green">187</FONT>            // Set fields based on matching substrings<a name="line.187"></a>
<FONT color="green">188</FONT>            for (Map.Entry&lt;Integer, PropertyDescriptor&gt; entry : subgroupMap.entrySet()) {<a name="line.188"></a>
<FONT color="green">189</FONT>    <a name="line.189"></a>
<FONT color="green">190</FONT>                // Get substring<a name="line.190"></a>
<FONT color="green">191</FONT>                String substring;<a name="line.191"></a>
<FONT color="green">192</FONT>                try {<a name="line.192"></a>
<FONT color="green">193</FONT>                    substring = matcher.group(entry.getKey());<a name="line.193"></a>
<FONT color="green">194</FONT>                } catch (IndexOutOfBoundsException e) {<a name="line.194"></a>
<FONT color="green">195</FONT>                    throw new IllegalArgumentException(<a name="line.195"></a>
<FONT color="green">196</FONT>                      "regex subgroup " + entry.getKey() + " does not exist in pattern `" + pattern + "'");<a name="line.196"></a>
<FONT color="green">197</FONT>                }<a name="line.197"></a>
<FONT color="green">198</FONT>    <a name="line.198"></a>
<FONT color="green">199</FONT>                // If substring was not matched, don't set property<a name="line.199"></a>
<FONT color="green">200</FONT>                if (substring == null)<a name="line.200"></a>
<FONT color="green">201</FONT>                    continue;<a name="line.201"></a>
<FONT color="green">202</FONT>    <a name="line.202"></a>
<FONT color="green">203</FONT>                // Set property from substring<a name="line.203"></a>
<FONT color="green">204</FONT>                this.setProperty(target, entry.getValue(), substring);<a name="line.204"></a>
<FONT color="green">205</FONT>            }<a name="line.205"></a>
<FONT color="green">206</FONT>    <a name="line.206"></a>
<FONT color="green">207</FONT>            // Post-process<a name="line.207"></a>
<FONT color="green">208</FONT>            this.postProcess(target);<a name="line.208"></a>
<FONT color="green">209</FONT>    <a name="line.209"></a>
<FONT color="green">210</FONT>            // Done<a name="line.210"></a>
<FONT color="green">211</FONT>            return target;<a name="line.211"></a>
<FONT color="green">212</FONT>        }<a name="line.212"></a>
<FONT color="green">213</FONT>    <a name="line.213"></a>
<FONT color="green">214</FONT>        /**<a name="line.214"></a>
<FONT color="green">215</FONT>         * Get the mapping from property name to setter method.<a name="line.215"></a>
<FONT color="green">216</FONT>         */<a name="line.216"></a>
<FONT color="green">217</FONT>        public Map&lt;String, PropertyDescriptor&gt; getPropertyMap() {<a name="line.217"></a>
<FONT color="green">218</FONT>            return Collections.unmodifiableMap(this.propertyMap);<a name="line.218"></a>
<FONT color="green">219</FONT>        }<a name="line.219"></a>
<FONT color="green">220</FONT>    <a name="line.220"></a>
<FONT color="green">221</FONT>        /**<a name="line.221"></a>
<FONT color="green">222</FONT>         * Set a property value.<a name="line.222"></a>
<FONT color="green">223</FONT>         * &lt;p/&gt;<a name="line.223"></a>
<FONT color="green">224</FONT>         * &lt;p&gt;<a name="line.224"></a>
<FONT color="green">225</FONT>         * The implementation in {@link SimpleObjectParser} simply invokes {@link #setSimpleProperty}.<a name="line.225"></a>
<FONT color="green">226</FONT>         * Other property types can be handled by overriding this method.<a name="line.226"></a>
<FONT color="green">227</FONT>         * &lt;/p&gt;<a name="line.227"></a>
<FONT color="green">228</FONT>         *<a name="line.228"></a>
<FONT color="green">229</FONT>         * @param obj       newly created instance<a name="line.229"></a>
<FONT color="green">230</FONT>         * @param property  descriptor for the property being set<a name="line.230"></a>
<FONT color="green">231</FONT>         * @param substring matched substring<a name="line.231"></a>
<FONT color="green">232</FONT>         * @throws IllegalArgumentException if substring cannot be successfully parsed<a name="line.232"></a>
<FONT color="green">233</FONT>         * @throws IllegalArgumentException if an exception is thrown attempting to set the property<a name="line.233"></a>
<FONT color="green">234</FONT>         */<a name="line.234"></a>
<FONT color="green">235</FONT>        public void setProperty(T obj, PropertyDescriptor property, String substring) {<a name="line.235"></a>
<FONT color="green">236</FONT>            this.setSimpleProperty(obj, property, substring);<a name="line.236"></a>
<FONT color="green">237</FONT>        }<a name="line.237"></a>
<FONT color="green">238</FONT>    <a name="line.238"></a>
<FONT color="green">239</FONT>        /**<a name="line.239"></a>
<FONT color="green">240</FONT>         * Set a primitive or string property value.<a name="line.240"></a>
<FONT color="green">241</FONT>         * &lt;p/&gt;<a name="line.241"></a>
<FONT color="green">242</FONT>         * &lt;p&gt;<a name="line.242"></a>
<FONT color="green">243</FONT>         * The implementation in {@link SimpleObjectParser} handles primitives using the corresponding<a name="line.243"></a>
<FONT color="green">244</FONT>         * {@code valueOf} method; String values are handled by setting the value directly.<a name="line.244"></a>
<FONT color="green">245</FONT>         * &lt;/p&gt;<a name="line.245"></a>
<FONT color="green">246</FONT>         *<a name="line.246"></a>
<FONT color="green">247</FONT>         * @throws IllegalArgumentException if property is not a primitive or String property.<a name="line.247"></a>
<FONT color="green">248</FONT>         * @throws IllegalArgumentException if substring cannot be successfully parsed (if primitive)<a name="line.248"></a>
<FONT color="green">249</FONT>         * @throws IllegalArgumentException if an exception is thrown attempting to set the property<a name="line.249"></a>
<FONT color="green">250</FONT>         */<a name="line.250"></a>
<FONT color="green">251</FONT>        public void setSimpleProperty(T obj, PropertyDescriptor property, String substring) {<a name="line.251"></a>
<FONT color="green">252</FONT>    <a name="line.252"></a>
<FONT color="green">253</FONT>            // Parse substring<a name="line.253"></a>
<FONT color="green">254</FONT>            Object value;<a name="line.254"></a>
<FONT color="green">255</FONT>            if (property.getPropertyType() == String.class)<a name="line.255"></a>
<FONT color="green">256</FONT>                value = substring;<a name="line.256"></a>
<FONT color="green">257</FONT>            else {<a name="line.257"></a>
<FONT color="green">258</FONT>                Primitive prim = Primitive.get(property.getPropertyType());<a name="line.258"></a>
<FONT color="green">259</FONT>                if (prim == null) {<a name="line.259"></a>
<FONT color="green">260</FONT>                    throw new IllegalArgumentException(<a name="line.260"></a>
<FONT color="green">261</FONT>                      "property `" + property.getName() + "' of " + this.targetClass + " is not a primitive or String");<a name="line.261"></a>
<FONT color="green">262</FONT>                }<a name="line.262"></a>
<FONT color="green">263</FONT>                value = prim.parseValue(substring);<a name="line.263"></a>
<FONT color="green">264</FONT>            }<a name="line.264"></a>
<FONT color="green">265</FONT>    <a name="line.265"></a>
<FONT color="green">266</FONT>            // Set value<a name="line.266"></a>
<FONT color="green">267</FONT>            try {<a name="line.267"></a>
<FONT color="green">268</FONT>                property.getWriteMethod().invoke(obj, value);<a name="line.268"></a>
<FONT color="green">269</FONT>            } catch (Exception e) {<a name="line.269"></a>
<FONT color="green">270</FONT>                throw new IllegalArgumentException("can't set property `" + property.getName() + "' of " + this.targetClass, e);<a name="line.270"></a>
<FONT color="green">271</FONT>            }<a name="line.271"></a>
<FONT color="green">272</FONT>        }<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>        /**<a name="line.274"></a>
<FONT color="green">275</FONT>         * Post-process newly created instances. The instance's properties will have already been<a name="line.275"></a>
<FONT color="green">276</FONT>         * set by a successful parse.<a name="line.276"></a>
<FONT color="green">277</FONT>         * &lt;p/&gt;<a name="line.277"></a>
<FONT color="green">278</FONT>         * &lt;p&gt;<a name="line.278"></a>
<FONT color="green">279</FONT>         * The implementation in {@link SimpleObjectParser} does nothing. Subclasses may override if needed.<a name="line.279"></a>
<FONT color="green">280</FONT>         * &lt;/p&gt;<a name="line.280"></a>
<FONT color="green">281</FONT>         */<a name="line.281"></a>
<FONT color="green">282</FONT>        protected void postProcess(T obj) {<a name="line.282"></a>
<FONT color="green">283</FONT>        }<a name="line.283"></a>
<FONT color="green">284</FONT>    <a name="line.284"></a>
<FONT color="green">285</FONT>        private void buildPropertyMap() {<a name="line.285"></a>
<FONT color="green">286</FONT>    <a name="line.286"></a>
<FONT color="green">287</FONT>            // Introspect target class<a name="line.287"></a>
<FONT color="green">288</FONT>            BeanInfo beanInfo;<a name="line.288"></a>
<FONT color="green">289</FONT>            try {<a name="line.289"></a>
<FONT color="green">290</FONT>                beanInfo = Introspector.getBeanInfo(this.targetClass);<a name="line.290"></a>
<FONT color="green">291</FONT>            } catch (IntrospectionException e) {<a name="line.291"></a>
<FONT color="green">292</FONT>                throw new RuntimeException(e);<a name="line.292"></a>
<FONT color="green">293</FONT>            }<a name="line.293"></a>
<FONT color="green">294</FONT>    <a name="line.294"></a>
<FONT color="green">295</FONT>            // Build map from property name -&gt; setter method<a name="line.295"></a>
<FONT color="green">296</FONT>            for (PropertyDescriptor property : beanInfo.getPropertyDescriptors()) {<a name="line.296"></a>
<FONT color="green">297</FONT>                if (property instanceof IndexedPropertyDescriptor)<a name="line.297"></a>
<FONT color="green">298</FONT>                    continue;<a name="line.298"></a>
<FONT color="green">299</FONT>                Method setter = property.getWriteMethod();<a name="line.299"></a>
<FONT color="green">300</FONT>                if (setter == null)<a name="line.300"></a>
<FONT color="green">301</FONT>                    continue;<a name="line.301"></a>
<FONT color="green">302</FONT>                Class&lt;?&gt; type = property.getPropertyType();<a name="line.302"></a>
<FONT color="green">303</FONT>                this.propertyMap.put(property.getName(), property);<a name="line.303"></a>
<FONT color="green">304</FONT>            }<a name="line.304"></a>
<FONT color="green">305</FONT>        }<a name="line.305"></a>
<FONT color="green">306</FONT>    }<a name="line.306"></a>
<FONT color="green">307</FONT>    <a name="line.307"></a>




























































</PRE>
</BODY>
</HTML>
